;(function (global){   //分号 防止在和其它js一起压缩时混乱

    console.log(global)

    function Scroll(el,options){

    }

    Scroll.prototype = {
        show: function (){
            console.log('鲁大师')
        }
    }

    //挂载
    global.Scroll=Scroll
})(window)